The author has developed a dissipation factor measuring system using the variable frequency series resonant voltage.

本文研制了一套在调频串联谐振电压下进行介质损耗因数测量的系统。

youdao

Different on-site test methods are Compared, and it is shown that power frequency series resonant circuit is relatively simple and feasible, and is therefore preferable.

对不同现场试验方法的比较说明：工频串联谐振回路简单易行，是比较可取的；同时需对振荡操作波和超低频法等作进一步研究。

youdao

This paper introduces a high-frequency series resonant charing method of solid pulsed laser power source, basing on constant current charging of digital control technology.

介绍了一种高频串联谐振充电的固体脉冲激光电源及其数字化控制恒流充电技术。

youdao

So this is our final equation, and this is actually called the Balmer series, which was named after Balmer, and this tells us the frequency of any of the lights where we start with an electron in some higher energy level and we drop down to an n final that's equal to 2.

把2代入到这里，所以得到1除以,这就是我们最终的方程，这叫做Balmer系，以Balmer名字命名的,它告诉我们从高能级掉到n等于2的,最终能级所发出光的频率。

麻省理工公开课 - 化学原理课程节选

It installed 33 RangeLAN 2 series radio frequency transceivers, or access devices, in the drop ceilings above classrooms, the cafeteria and the library.

CNN: Florida law school uses wireless technology

To start with, they had to rely on a high-resolution camera mounted on a frame, and a series of filters attached to a rotating wheel, to create a set of single-frequency images from the same perspective, in order that they could be merged as desired.

ECONOMIST: Monitor